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Updated DB classes to support multiple database connection strings - for when replication is used.

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git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0@8808 201d5d3c-b55e-5fd7-737f-ddc643e51545
This commit is contained in:
ucorina 2011-08-18 17:55:29 +00:00
parent ee1a615008
commit bb95345fb2
12 changed files with 576 additions and 680 deletions
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152
classes/db/DBMssql.class.php
View file

@ -12,11 +12,9 @@
/**
* information to connect to DB
**/
var $conn = NULL;
var $database = NULL; ///< database
var $prefix = 'xe'; // / <prefix of XE tables(One more XE can be installed on a single DB)
var $param = array();
var $comment_syntax = '/* %s */';
var $param = array();
var $comment_syntax = '/* %s */';
/**
* @brief column type used in mssql
@ -59,54 +57,30 @@
return true;
}
/**
* @brief DB settings and connect/close
**/
function _setDBInfo() {
$db_info = Context::getDBInfo();
$this->hostname = $db_info->db_hostname;
$this->port = $db_info->db_port;
$this->userid = $db_info->db_userid;
$this->password = $db_info->db_password;
$this->database = $db_info->db_database;
$this->prefix = $db_info->db_table_prefix;
if(!substr($this->prefix,-1)!='_') $this->prefix .= '_';
}
/**
* @brief DB Connection
**/
function _connect() {
// ignore if db information not exists
if(!$this->hostname || !$this->database) return;
function __connect($connection) {
//sqlsrv_configure( 'WarningsReturnAsErrors', 0 );
//sqlsrv_configure( 'LogSeverity', SQLSRV_LOG_SEVERITY_ALL );
//sqlsrv_configure( 'LogSubsystems', SQLSRV_LOG_SYSTEM_ALL );
$result = @sqlsrv_connect($connection["db_hostname"], array('Database' => $connection["db_database"], 'UID' => $connection["db_userid"], 'PWD' => $connection["db_password"]));
//sqlsrv_configure( 'WarningsReturnAsErrors', 0 );
//sqlsrv_configure( 'LogSeverity', SQLSRV_LOG_SEVERITY_ALL );
//sqlsrv_configure( 'LogSubsystems', SQLSRV_LOG_SYSTEM_ALL );
$this->conn = sqlsrv_connect( $this->hostname,
array( 'Database' => $this->database,'UID'=>$this->userid,'PWD'=>$this->password ));
// Check connections
if($this->conn){
$this->is_connected = true;
$this->password = md5($this->password);
}else{
$this->is_connected = false;
}
if(!$result)
{
$errors = print_r(sqlsrv_errors(), true);
$this->setError (-1, 'database connect fail' . PHP_EOL . $errors);
return;
}
return $result;
}
/**
* @brief DB disconnect
**/
function close() {
if($this->is_connected == false) return;
function _close($connection) {
$this->commit();
sqlsrv_close($this->conn);
$this->conn = null;
sqlsrv_close($connection);
}
/**
@ -123,31 +97,28 @@
/**
* @brief Begin transaction
**/
function begin() {
if($this->is_connected == false || $this->transaction_started) return;
if(sqlsrv_begin_transaction( $this->conn ) === false) return;
$this->transaction_started = true;
function _begin() {
$connection = $this->_getConnection('master');
if(sqlsrv_begin_transaction($connection) === false) return;
return true;
}
/**
* @brief Rollback
**/
function rollback() {
if($this->is_connected == false || !$this->transaction_started) return;
$this->transaction_started = false;
sqlsrv_rollback( $this->conn );
function _rollback() {
$connection = $this->_getConnection('master');
sqlsrv_rollback($connection);
return true;
}
/**
* @brief Commit
**/
function commit($force = false) {
if(!$force && ($this->is_connected == false || !$this->transaction_started)) return;
$this->transaction_started = false;
sqlsrv_commit( $this->conn );
function _commit() {
$connection = $this->_getConnection('master');
sqlsrv_commit($connection);
return true;
}
/**
@ -159,47 +130,40 @@
* object if a row returned \n
* return\n
**/
function _query($query) {
if($this->is_connected == false || !$query) return;
function __query($query, $connection) {
$_param = array();
$_param = array();
if(count($this->param)){
foreach($this->param as $k => $o){
if($o->getType() == 'number'){
$value = $o->getUnescapedValue();
if(is_array($value)) $_param = array_merge($_param, $value);
else $_param[] = $o->getUnescapedValue();
}else{
$value = $o->getUnescapedValue();
if(is_array($value)) {
foreach($value as $v)
$_param[] = array($v, SQLSRV_PARAM_IN, SQLSRV_PHPTYPE_STRING('utf-8'));
}
else $_param[] = array($value, SQLSRV_PARAM_IN, SQLSRV_PHPTYPE_STRING('utf-8'));
}
}
}
// Notify to start a query execution
$this->actStart($query);
if(count($this->param)){
foreach($this->param as $k => $o){
if($o->getType() == 'number'){
$value = $o->getUnescapedValue();
if(is_array($value)) $_param = array_merge($_param, $value);
else $_param[] = $o->getUnescapedValue();
}else{
$value = $o->getUnescapedValue();
if(is_array($value)) {
foreach($value as $v)
$_param[] = array($v, SQLSRV_PARAM_IN, SQLSRV_PHPTYPE_STRING('utf-8'));
}
else $_param[] = array($value, SQLSRV_PARAM_IN, SQLSRV_PHPTYPE_STRING('utf-8'));
}
}
}
// Run the query statement
$result = false;
if(count($_param)){
$result = @sqlsrv_query($this->conn, $query, $_param);
$result = @sqlsrv_query($connection, $query, $_param);
}else{
$result = @sqlsrv_query($this->conn, $query);
$result = @sqlsrv_query($connection, $query);
}
// Error Check
// Error Check
if(!$result) $this->setError(print_r(sqlsrv_errors(),true));
// Notify to complete a query execution
$this->actFinish();
$this->param = array();
$this->param = array();
return $result;
return $result;
}
/**
@ -490,7 +454,7 @@
* In order to get a list of pages easily when selecting \n
* it supports a method as navigation
**/
function _executeSelectAct($queryObject) {
function _executeSelectAct($queryObject, $connection = null) {
$query = $this->getSelectSql($queryObject);
if(strpos($query, "substr")) $query = str_replace ("substr", "substring", $query);
@ -499,10 +463,10 @@
$this->param = $queryObject->getArguments();
$query .= (__DEBUG_QUERY__&1 && $output->query_id)?sprintf(' '.$this->comment_syntax,$this->query_id):'';
$result = $this->_query($query);
$result = $this->_query($query, $connection);
if ($this->isError ()) return $this->queryError($queryObject);
else return $this->queryPageLimit($queryObject, $result);
else return $this->queryPageLimit($queryObject, $result, $connection);
}
function getParser(){
@ -522,7 +486,7 @@
return;
}
function queryPageLimit($queryObject, $result){
function queryPageLimit($queryObject, $result, $connection){
if ($queryObject->getLimit() && $queryObject->getLimit()->isPageHandler()) {
// Total count
$count_query = sprintf('select count(*) as "count" %s %s', 'FROM ' . $queryObject->getFromString(), ($queryObject->getWhereString() === '' ? '' : ' WHERE '. $queryObject->getWhereString()));
@ -531,7 +495,7 @@
}
$count_query .= (__DEBUG_QUERY__&1 && $output->query_id)?sprintf (' '.$this->comment_syntax, $this->query_id):'';
$result_count = $this->_query($count_query);
$result_count = $this->_query($count_query, $connection);
$count_output = $this->_fetch($result_count);
$total_count = (int)$count_output->count;
@ -549,9 +513,9 @@
// check the page variables
if ($page > $total_page) $page = $total_page;
$start_count = ($page - 1) * $list_count;
$query .= (__DEBUG_QUERY__&1 && $queryObject->query_id)?sprintf (' '.$this->comment_syntax, $this->query_id):'';
$result = $this->_query ($query);
$result = $this->_query ($query, $connection);
if ($this->isError ())
return $this->queryError($queryObject);